I think that the model is good but the render needs some more work.The car body work doesnt look shiny enough, remember that car paint has a layer of laquer on it that really makes it shine, what sort of job are you hoping to go for? if you want to be a modeller then I would spend time perfecting your models (and also stay away from cars/spaceships and robots it's all been done a million times before) try and find something really original to do (that doesn't mean your car model isn't good though you just need to have more original work) Also if you want to be a modeller then it's not too important that you can texture (well not where I work anyways )

Good luck with the job hunt

Alan